| MaddyTheIota vs Jin | 291–299 | 49.32% |
| MaddyTheIota vs King | 319–251 | 55.96% |
| MaddyTheIota vs Bryan | 259–305 | 45.92% |
| MaddyTheIota vs Kazuya | 288–255 | 53.04% |
| MaddyTheIota vs Dragunov | 255–258 | 49.71% |
| MaddyTheIota vs Paul | 194–187 | 50.92% |
| MaddyTheIota vs Law | 172–176 | 49.43% |
| MaddyTheIota vs Hwoarang | 174–157 | 52.57% |
| MaddyTheIota vs Yoshimitsu | 140–128 | 52.24% |
| MaddyTheIota vs Devil Jin | 118–136 | 46.46% |
| MaddyTheIota vs Heihachi | 123–120 | 50.62% |
| MaddyTheIota vs Steve | 123–119 | 50.83% |
| MaddyTheIota vs Nina | 116–94 | 55.24% |
| MaddyTheIota vs Victor | 114–94 | 54.81% |
| MaddyTheIota vs Feng | 98–102 | 49.00% |
| MaddyTheIota vs Reina | 90–81 | 52.63% |
| MaddyTheIota vs Claudio | 76–81 | 48.41% |
| MaddyTheIota vs Lee | 76–79 | 49.03% |
| MaddyTheIota vs Clive | 60–89 | 40.27% |
| MaddyTheIota vs Eddy | 68–79 | 46.26% |
| MaddyTheIota vs Jack-8 | 60–78 | 43.48% |
| MaddyTheIota vs Lars | 68–65 | 51.13% |
| MaddyTheIota vs Lili | 58–69 | 45.67% |
| MaddyTheIota vs Alisa | 50–76 | 39.68% |
| MaddyTheIota vs Leroy | 61–62 | 49.59% |
| MaddyTheIota vs Asuka | 64–51 | 55.65% |
| MaddyTheIota vs Azucena | 47–68 | 40.87% |
| MaddyTheIota vs Lidia | 56–57 | 49.56% |
| MaddyTheIota vs Jun | 55–56 | 49.55% |
| MaddyTheIota vs Shaheen | 57–46 | 55.34% |
| MaddyTheIota vs Anna | 44–45 | 49.44% |
| MaddyTheIota vs Leo | 40–43 | 48.19% |
| MaddyTheIota vs Xiaoyu | 38–40 | 48.72% |
| MaddyTheIota vs Raven | 42–32 | 56.76% |
| MaddyTheIota vs Armor King | 39–31 | 55.71% |
| MaddyTheIota vs Fahkumram | 37–30 | 55.22% |
| MaddyTheIota vs Kuma | 30–36 | 45.45% |
| MaddyTheIota vs Zafina | 31–29 | 51.67% |
| MaddyTheIota vs Panda | 8–14 | 36.36% |
| MaddyTheIota vs Miary Zo | 10–8 | 55.56% |
Limitations
This data is often requested to give insight into which characters you have more trouble with than others, but it is not particularly helpful for that. The main issue is that it is heavily skewed by how strong the opponents you play are.
For example, this data suggests my worst matchup is clearly vs Reina, but that's just because most of those games are vs Yagami.
There is a way to account for this being worked on. The central idea is to assign each matchup a rating vs you which adjusts based on the result, much like the regular rating but also based on the rating of each player. With this, it would give a better summary of how well you perform vs each character.
In the meantime, this page is here to present the data as requested.